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Finding the Fourth Proportional to 201,777.30, 278,319.32 and 126,194.58

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Solution

The fourth proportional to 201,777.30, 278,319.32 and 126,194.58 is: 174,065.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,777.30 : 278,319.32 = 126,194.58 : x
  2. Step 2: Convert to fraction form
    201,777.30/278,319.32 = 126,194.58/x
  3. Step 3: Cross multiply
    201,777.30x = 278,319.32 × 126,194.58
  4. Step 4: Simplify right side
    201,777.30x = 35,122,389,693.29
  5. Step 5: Solve for x
    x = 35,122,389,693.29/201,777.30
  6. Step 6: Final answer
    x = 174,065.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.